| Sanlucar la Mayor to Octeville | 875.82 mi (1,409.49 km) |
| Sanlucar la Mayor to Oignies | 1,011.51 mi (1,627.87 km) |
| Sanlucar la Mayor to Oissel | 902.77 mi (1,452.87 km) |
| Sanlucar la Mayor to Olivet | 831.98 mi (1,338.95 km) |
| Sanlucar la Mayor to Ollioules | 748.29 mi (1,204.26 km) |
| Sanlucar la Mayor to Olonne-sur-Mer | 671.78 mi (1,081.13 km) |
| Sanlucar la Mayor to Oloron-Sainte-Marie | 497.84 mi (801.20 km) |
| Sanlucar la Mayor to Onet Village | 665.43 mi (1,070.90 km) |
| Sanlucar la Mayor to Onnaing | 1,020.43 mi (1,642.23 km) |
| Sanlucar la Mayor to Orange | 740.37 mi (1,191.52 km) |
| Sanlucar la Mayor to Orchies | 1,017.43 mi (1,637.40 km) |
| Sanlucar la Mayor to Orleans | 834.44 mi (1,342.91 km) |
| Sanlucar la Mayor to Orly | 895.49 mi (1,441.15 km) |
| Sanlucar la Mayor to Ormesson-sur-Marne | 901.47 mi (1,450.77 km) |
| Sanlucar la Mayor to Orsay | 887.88 mi (1,428.91 km) |
